CN111154417B - Protective film assembly - Google Patents
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- CN111154417B CN111154417B CN202010059904.7A CN202010059904A CN111154417B CN 111154417 B CN111154417 B CN 111154417B CN 202010059904 A CN202010059904 A CN 202010059904A CN 111154417 B CN111154417 B CN 111154417B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/241—Polyolefin, e.g.rubber
- C09J7/243—Ethylene or propylene polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/245—Vinyl resins, e.g. polyvinyl chloride [PVC]
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/403—Adhesives in the form of films or foils characterised by release liners characterised by the structure of the release feature
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
- C09J2423/046—Presence of homo or copolymers of ethene in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2427/00—Presence of halogenated polymer
- C09J2427/006—Presence of halogenated polymer in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2483/00—Presence of polysiloxane
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Abstract
The application provides a protection film assembly, this protection film assembly is including range upon range of setting in proper order from type paper, protection film and base stock, wherein, the protection film includes screen protection rete and encircles the side protection rete of screen protection rete edge all around is equipped with at least one breach on the side protection rete, and the position of breach corresponds with the position of the last entity key of mobile terminal, and is fixed through first glue film between type paper and the screen protection rete, and is fixed through the second glue film between base stock and the side protection rete, and the viscidity of first glue film is less than the viscidity of second glue film. The protection film in the protection film subassembly of this application includes screen protection rete and side protection rete, takes away screen protection rete through tearing off release paper when the laminating, and both convenient operation can avoid the entity key position through the breach again, avoids taking place to press into the mobile terminal entity key and leads to the condition of influence equipment and test.
Description
Technical Field
The application relates to the field of electronic product assembly, in particular to a protective film assembly.
Background
With the continuous development of the appearance industrial design of the mobile terminal, the market has stronger and stronger requirements on the thickness of the mobile terminal, but the thickness of the mobile terminal cannot meet the expected requirements due to the influence of various factors such as various devices, a main board, battery capacity and the like. In order to make the mobile terminal look thinner, a circle of high-brightness plastic decoration parts with arc surfaces are generally made around the touch screen of the mobile terminal, so that the high-brightness decoration parts and the touch screen are integrated when the mobile terminal looks from the side, the arc surfaces are excessive, and the illusion that the whole machine is very thin can be provided for a user visually.
Because of cost reason, generally can require the decoration to assemble with the form of material (do not spray the protective paint on the surface promptly), but because the decoration is more the station when producing line assembly, so very easy fish tail, cost of maintenance is very high, has increased the cost of product, so need cover one deck protection film on the decoration, and traditional protection film is the form that the narrow strip was wrapped up round usually, not only can press the button of side into, influence equipment and test, and the narrow strip is difficult to be operated when the winding, has the secondary damage.
Disclosure of Invention
The application provides a protection film subassembly has solved traditional protection film and can advance mobile terminal's side key pressure when the installation, and the installation effect is poor and the technical problem that the installation degree of difficulty is high.
The technical scheme provided by the application is as follows:
the embodiment of the application provides a protective film assembly, which comprises release paper, a protective film and base paper which are sequentially stacked; the protective film comprises a screen protective film layer and a side protective film layer surrounding the periphery of the screen protective film layer, at least one notch is formed in the side protective film layer, and the position of the notch corresponds to the position of an entity key on the mobile terminal; the release paper is fixed with the screen protection film layers through the first adhesive layers, the base paper is fixed with the side protection film layers through the second adhesive layers, and the viscosity of the first adhesive layers is smaller than that of the second adhesive layers.
In the protective film assembly of the present application, the length of the release paper is not less than the length of the screen protective film layer, and the width of the release paper is greater than the width of the protective film layer.
In the protective film assembly of the application, the length of the base paper is greater than the length of the release paper and the length of the protective film, and the width of the base paper is greater than the width of the release paper.
In the protective film assembly of the present application, the material of the release paper includes polyethylene or polyethylene terephthalate.
In the protective film assembly of the present application, the material of the protective film includes polyethylene, polyethylene terephthalate, or polyvinyl chloride.
In the protective film assembly of the present application, the thickness of the protective film ranges from 0.03mm to 0.3 mm.
In the protective film assembly of the present application, the material of the second adhesive layer includes an optical adhesive.
In the protective film assembly of the present application, the thickness of the second glue layer ranges from 0.2mm to 0.25 mm.
In the protective film assembly of the application, the release paper comprises at least one positioning hole, and the positioning hole is used for positioning the protective film assembly when the protective film assembly is installed on a mobile terminal.
In the protective film assembly, the number of the positioning holes is 3, and the positioning holes are located in an area, which is not covered by the protective film, on the release paper.
The beneficial effect of this application does: be different from prior art, the protection film subassembly that this application provided is including range upon range of setting in proper order from type paper, protection film and base stock, wherein, the protection film includes screen protection rete and encircles the side protection rete of screen protection rete edge all around is equipped with at least one breach on the side protection rete, and the position of breach corresponds with the position of the last entity key of mobile terminal, and is fixed through first glue film between type paper and the screen protection rete, and is fixed through the second glue film between base stock and the side protection rete, and the viscidity of first glue film is less than the viscidity of second glue film. The protection film in the protection film subassembly of this application includes screen protection rete and side protection rete, takes away screen protection rete through tearing off release paper when the laminating, and both convenient operation can avoid the entity key position through the breach again, avoids taking place to press into the mobile terminal entity key and leads to the condition of influence equipment and test.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a protective film assembly provided in an embodiment of the present application.
Fig. 2 is a schematic top-view structural diagram of a protective film assembly provided in an embodiment of the present application.
Fig. 3 is a schematic diagram illustrating an operation of attaching a protective film assembly to a mobile terminal according to an embodiment of the present disclosure.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments that can be implemented by the application. Directional phrases used in this application, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., refer only to the directions of the attached drawings. Accordingly, the directional terminology is used for purposes of illustration and understanding, and is in no way limiting. In the drawings, elements having similar structures are denoted by the same reference numerals.
It should be noted that the thicknesses and shapes in the drawings of the present application do not reflect actual proportions, but are merely intended to schematically illustrate the contents of the embodiments of the present application.
Before leaving the factory, the mobile terminal needs to go through a plurality of processes, for example, the touch screen of the mobile terminal needs to be regularly subjected to related display tests, if the touch screen of the mobile terminal is attached with a protective film, the touch screen needs to be regularly taken down, a circle of decorating parts around the display screen of the mobile terminal does not need to be tested, and the decorating parts are high-brightness material parts, so that appearance protection needs to be well made and the decorating parts cannot be taken down. The existing protection method is to paste a circle of protection film on the side of the mobile terminal in a narrow strip circle wrapping mode, but the side of the mobile terminal is provided with at least one side key, such as a volume key, a starting key and the like, and frequent testing is needed before leaving a factory, so that protection film covering is not needed, but the side key is pressed in by adopting the mode, assembly and testing are affected, and the narrow strip is not easy to operate when being wound in a circle, and secondary damage is possibly caused. In view of the above problems, embodiments of the present application provide a protection film assembly, which aims to solve the technical problems that a conventional protection film may push in a side key of a mobile terminal and the conventional protection film is not easy to operate when installed.
Referring to fig. 1 and 2, fig. 1 and 2 are a schematic cross-sectional view of a protective film assembly provided in an embodiment of the present application and a schematic top-view structure of the protective film assembly provided in the embodiment of the present application, respectively, as shown in fig. 1 and 2, a protective film assembly 100 provided in the embodiment of the present application includes a release paper 110, a protective film 130 and a backing paper 150, which are sequentially stacked, the protective film 130 includes a screen protective film layer 131 and a side protective film layer 132 surrounding a peripheral edge of the screen protective film layer 131, the side protective film layer 132 is provided with at least one notch 1321, and a position of the notch 1321 corresponds to a position of a physical key on a mobile terminal; the release paper 110 and the screen protection film layer 131 are fixed by the first adhesive layer 120, the base paper 150 and the side protection film layer 132 are fixed by the second adhesive layer 140, and the viscosity of the first adhesive layer 120 is smaller than that of the second adhesive layer 140.
It should be noted that other avoiding holes (not shown) are also formed in the side protecting film layer 132, and are used to avoid other positions that need to be avoided, such as a microphone hole, a sensor, an earphone hole, a charging hole, or a SIM card (Subscriber Identity module) slot.
In the present embodiment, the length of the release paper 110 is not less than the length of the screen protection film layer 131, and the width of the release paper 110 is greater than the width of the protection film 130.
Specifically, the release paper 110 is fixed to the protective film 130 through the first adhesive layer 120, so that after the protective film assembly 110 is mounted on the mobile terminal, when the release paper 110 is torn off, the screen protection film layer 131 can be taken away, and therefore, in order to completely take away the screen protection film layer 131, no screen protection film layer 131 remains, the release paper 110 should be sized to completely cover the screen protection film layer 131, and meanwhile, the release paper 110 mainly aims to add the positioning hole 111 at the edge, so that the length of the release paper 110 should not be less than the length of the screen protection film layer 131, the width of the release paper 110 should be greater than the width of the protective film 130, and preferably, the width of the release paper 110 should preferably extend 10mm to 15mm along both sides of the width of the protective film.
Specifically, the main purpose of fixing the release paper 110 and the protection film 130 by the first glue layer 120 is to remove the screen protection film layer 131 by tearing the release paper 110 when the protection film assembly 100 is installed, and then preferably, only the screen protection film layer 131 and the release paper 110 may be fixed by the first glue layer 120 without fixing the whole protection film 130 and the release paper 110.
In the present embodiment, the length of the base paper 150 is greater than the length of the release paper 110 and the length of the protective film 130, and the width of the base paper 150 is greater than the width of the release paper 110.
Specifically, the base paper 150 mainly serves to support the release paper 110 and the protective film 130, and at the same time, the protective film 130 and the second adhesive layer 140 can be protected from contamination, and the size of the base paper 150 can be larger than that of the release paper 110 and the protective film 130 in order to facilitate the release paper 110 and the protective film 130 to be peeled off from the base paper 150.
In this embodiment, the material of the release paper 110 includes polyethylene or polyethylene terephthalate.
Specifically, the release paper 110 is a release paper made of paper coated with an anti-sticking substance, and the type thereof is distinguished according to the material, thickness, elongation, and difference between single and double sides. The release paper has the characteristics that the release paper can stick the adhesive layer, can be easily separated from the adhesive layer, does not have chemical reaction with or pollute a resin system, keeps the length and the width of the release paper unchanged when the temperature and the humidity of the environment change, does not have the phenomenon that the release paper wrinkles to stick the adhesive layer, has enough compactness, and can prevent moisture from entering the adhesive layer through the release paper.
It should be noted that the release paper 110 can also effectively prevent the surface of the protective film 130 from being scratched by accident during transportation and storage, and prevent the waste of the protective film assembly 100 when the user is not using the protective film assembly.
In this embodiment, the material of the protection film 130 includes polyethylene, polyethylene terephthalate, or polyvinyl chloride.
Polyethylene (PE) is a thermoplastic resin obtained by polymerizing ethylene. In industry, copolymers of ethylene with small amounts of alpha-olefins are also included. The polyethylene is odorless and nontoxic, feels like wax, has excellent low-temperature resistance (the lowest use temperature can reach-100 to-70 ℃), has good chemical stability, and can resist corrosion of most of acid and alkali (cannot resist acid with oxidation property). Is insoluble in common solvents at room temperature, has low water absorption and excellent electrical insulation. The protective film made of polyethylene as base material is divided into high-density polyethylene protective film, medium-density polyethylene and low-density polyethylene, and it is soft in property, good in adhesive property, easy to strip and has no residual glue when stripped.
Polyethylene terephthalate, which is prepared by exchanging dimethyl terephthalate with ethylene glycol or esterifying terephthalic acid with ethylene glycol to synthesize dihydroxy ethyl terephthalate, and then performing polycondensation reaction, belongs to crystalline saturated polyester, is a milky white or light yellow polymer with high crystallinity, has smooth and glossy surface, and is a common resin in life. Polyethylene terephthalate is used as a raw material, a thick sheet is prepared by an extrusion method, and a film material prepared by biaxial stretching, namely a polyester film (PET), is usually a colorless transparent glossy film (the polyester film can be added with additive particles to make the film have color), has excellent mechanical properties, high rigidity, hardness and toughness, puncture resistance, friction resistance, high temperature resistance, low temperature resistance, chemical resistance, oil resistance, air tightness and aroma retention, and is one of common barrier composite film base materials.
Polyvinyl chloride (pvc), abbreviated as pvc in english, is an initiator of Vinyl Chloride Monomer (VCM) in the presence of peroxide, azo compound, etc.; or polymers polymerized by a radical polymerization mechanism under the action of light and heat, vinyl chloride homopolymers and vinyl chloride copolymers are collectively called vinyl chloride resins. The film made of polyvinyl chloride is superior to polyethylene and polypropylene in transparency and inferior to polystyrene in transparency, and is divided into soft and hard polyvinyl chloride according to the amount of the assistant, the soft product is soft and tough and has sticky hand feeling, the hardness of the hard product is higher than that of low-density polyethylene and lower than that of polypropylene, and the whitening phenomenon appears at the folding position.
In the present embodiment, the thickness of the protective film 130 ranges from 0.03mm to 0.3 mm.
Specifically, the thickness of 0.03mm, 0.05mm, 0.075mm is generally used.
In the present embodiment, the material of the second adhesive layer 140 includes an optical adhesive.
Specifically, the optical cement has the characteristics of being colorless and transparent, the light transmittance is greater than 90%, and the optical cement is harmless to human bodies and environments, so that the optical cement used as the second adhesive layer 140 cannot darken or change the color of a high-brightness decoration part, so that the optical cement cannot visually give a user a very thin illusion, and cannot damage human bodies and environments.
It should be noted that the material of the second adhesive layer 140 may also be an organic silicon adhesive, a acrylic adhesive or a PU (polyurethane) adhesive.
The organic silicon adhesive belongs to a single-component semitransparent paste room-temperature curing adhesive and is a high-performance elastomer formed by natural curing. Has excellent cold and hot resistance, aging resistance and electric insulation performance, and has good adhesion to most of metal and non-metal materials. For example, if the release paper 110 is a PET silicon-free release paper, and a silicone adhesive is used as the first adhesive layer 120, the problem that silicone oil and silicone gel are fused, so that the peeling force is too tight and residual glue is formed can be avoided.
The acrylic adhesive is an organic glass glue, is a transparent oily and thick liquid prepared from synthetic resin and an environment-friendly mixed solvent, and has the characteristics of high speed, strong bonding force, no whitening and no hardening, capability of achieving a polishing effect, single component (convenient gluing), no need of an ultraviolet light source, no need of heating and normal temperature curing and the like.
The PU glue has excellent bonding fastness, good heat-resistant and weather-resistant performance, no color, translucency, environmental protection, no toxicity and convenient operation, and is suitable for flow line production.
Specifically, the material of the first adhesive layer 120 may be one of the above materials, but it should be noted that the material of the first adhesive layer 120 and the material of the second adhesive layer 140 cannot be the same, because the viscosity of the first adhesive layer 120 is smaller than that of the second adhesive layer 130.
Preferably, the release paper 110 may be subjected to surface treatment, which includes corona, silicon-free, low-silicon, fluoroplastic, and silicone oil treatment, for example, when the first adhesive layer 120 is an organic silica gel layer, the surface treatment may be corona, silicon-free, or low-silicon treatment; when the first adhesive layer 120 is an acrylic adhesive, the surface treatment may be silicone oil treatment; when the first adhesive layer 120 is a PU adhesive, the surface treatment may be a fluoroplastic treatment. According to the principle of combination of polar groups on the surface of the colloid, the surface treatment is mainly carried out according to different colloid materials and different surface treatments according to the requirements of stripping force. For example, the surface of the PET silicon-free release film adopts a silicon-free coating process, so that the problem of residual silicone oil is solved, and the release film is selected to be attached to a silicone surface, so that the problems that the silicone oil and the silicone are fused, the peeling force is too tight, and the residual adhesive is formed are solved. The PET fluorine is from type membrane by the PET substrate, and the surface is scribbled 0.2um ~ 0.6um fluorine and is released type material and form, and PET fluorine is from type membrane's characteristics and is: the release film is separated from the silica gel through fluorine treatment, and the peeling force is low.
In the present embodiment, the thickness of the second glue layer 140 ranges from 0.2mm to 0.25 mm.
Specifically, although the light transmittance of the optical cement is greater than 90%, complete light transmittance can not be achieved, the thickness of the second adhesive layer 140 is set to be 0.2mm to 0.25mm, the bonding effect can be guaranteed, the light transmittance of the mobile phone is not affected, and user experience can be effectively improved.
In the present embodiment, the release paper 110 includes at least one positioning hole 111, and the positioning hole 111 is used for positioning the protective film assembly 100 when the protective film assembly 100 is mounted on the mobile terminal.
Specifically, the release paper 110 is mainly used for adding the positioning hole 111 on the edge, so that when the film is mounted by using a mounting jig, the waste of protective film components caused by air bubbles generated by deviation of the bonding position due to unskilled operation of a user during film bonding is prevented. The specific positioning manner is to insert the positioning holes 111 into the positioning columns, so the number and the positions of the positioning holes 111 should be set corresponding to the positions and the numbers of the positioning columns on the installation jig.
In the present embodiment, the number of the positioning holes 111 may be 3, and the 3 positioning holes 111 are located in the area of the release paper 110 not covered by the protection film 130.
Specifically, the number of the positioning holes on the mounting jig used by the protective film assembly in the embodiment of the application is 3, the positioning holes are located on two sides of the protective film, two positioning holes are arranged on one side of the protective film at intervals, and one positioning hole is arranged on the other side of the protective film, so that the positioning column and the positioning holes can be more firmly inserted.
In this embodiment, the base paper 150 may be made of paper or plastic, and the surface thereof is coated with wax.
Specifically, the wax is applied to the surface of the base paper 150, so that the base paper 150 can be adhered to the second adhesive layer 140 and can be easily separated from the second adhesive layer 140. It should be noted that the material of the base paper 150 may also be the same as that of the release paper 110.
Different from the prior art, the protection film assembly 100 in this embodiment includes the release paper 110, the protection film 130 and the base paper 150 which are sequentially stacked, wherein the protection film 130 includes the screen protection film layer 131 and the side protection film layer 132 surrounding the peripheral edge of the screen protection film layer, the side protection film layer 132 is provided with at least one notch 1321, the position of the notch 1321 corresponds to the position of the physical key on the mobile terminal, the release paper 110 and the screen protection film layer 131 are fixed by the first adhesive layer 120, the base paper 150 and the side protection film layer 132 are fixed by the second adhesive layer 140, the viscosity of the first adhesive layer 120 is smaller than that of the second adhesive layer 140, the protection film in the protection film assembly of the present application includes the screen protection film layer and the side protection film layer, the screen protection film layer is taken away by tearing the release paper during the fitting, which is convenient to operate and can avoid the physical key position through the notch, the condition that the assembly and the test are influenced due to the fact that the entity key of the mobile terminal is pressed in is avoided.
In order to solve the above problems, the present application further provides a side protection film attaching method, which is applied to a protection film assembly, wherein the protection film assembly includes release paper, a protection film and base paper, which are sequentially stacked, the protection film includes a screen protection film layer and a side protection film layer surrounding the peripheral edge of the screen protection film layer, the side protection film layer is provided with at least one notch, and the position of the notch corresponds to the position of an entity key on a mobile terminal; fixed through first glue film between release paper and the screen protection rete, fixed through the second glue film between body paper and the side protection rete, and first glue film viscidity is less than the viscidity of second glue film, and this side protection film laminating method includes:
s101, providing an installation jig.
Specifically, the installation jig can be an installation jig with a positioning column.
S102, tearing off and discarding the base paper from the protective film assembly;
in particular, the main purpose of the base paper is to carry the protective film and the release paper, prevent the contamination of the glue layer and prevent the deformation of the protective film, which can be directly torn off and discarded when installed.
S103, sequentially placing the protective film assembly 20 with the base paper removed and the mobile terminal 10 into an installation jig;
specifically, as shown in fig. 3, fig. 3 is a schematic diagram illustrating an operation of attaching the protective film assembly provided in the present application on a mobile terminal, and step S103 may include the following sub-steps:
placing the protective film assembly 20 with the base paper torn off into the mounting jig 30 from the bottom downwards;
the mobile terminal 10 protection screen is placed downwards into the installation jig 30.
Specifically, if installation tool 30 is the installation tool of taking reference column 31, then the width from type paper is greater than the width of protection film, and set up at least one locating hole in the region that is wider than the protection film from type paper, the quantity and the position of locating hole should correspond the setting with the quantity and the position of reference column 31 on installation tool 30, when putting into the installation tool at the protection film subassembly 20 that will tear the body paper, correspond grafting locating hole and reference column 31, just can fix the protection film subassembly, it is more convenient to make the installation, thereby prevent the laminating position deviation that the user is unfamiliar with the operation and leads to when the pad pasting, produce the bubble, and then the waste of the protection film subassembly that leads to.
Specifically, step S103 may further include the following sub-steps:
putting the mobile terminal protection screen upwards into an installation jig;
and putting the protective film assembly with the base paper torn off into the mounting jig from the upward release paper.
Specifically, the mobile terminal may include a smart phone, a tablet computer, and the like.
S104, pressing the protective film assembly or the mobile terminal with the base paper torn off to enable the protective film assembly with the base paper torn off to be completely attached to the mobile terminal.
Specifically, it should be ensured that the side protection film layer is attached to the mobile terminal smoothly without bubbles.
And S105, taking out the mobile terminal attached with the protective film assembly with the base paper torn off.
If the mobile terminal and the protective film assembly with the base paper being torn off are attached, the mobile terminal can be taken out for the next operation.
S106, tearing off release paper, wherein the release paper can take away a screen protection film layer through a first adhesive layer, and finally only a side protection film layer is left to complete the lamination of the side protection film and the mobile terminal.
Specifically, it is fixed through first glue film between release paper and the protection film, and protection film itself does not have viscidity, consequently, there is not viscidity before screen protection rete and the mobile terminal display screen, and touch-sensitive screen display area is because itself is glass, and anti fingerprint picture layer has been made on the surface moreover, and surface energy is very low, nevertheless because through the laminating of second glue film between side protection rete and the mobile terminal, and the viscidity of first glue film is less than the second glue film, consequently, tear screen protection rete together very easily when tearing off release paper.
Different from the prior art, the side protective film attaching method provided by the application is applied to a protective film assembly, the protective film assembly comprises release paper, a protective film and base paper which are sequentially stacked, the protective film comprises a screen protective film layer and a side protective film layer surrounding the peripheral edge of the screen protective film layer, at least one notch is formed in the side protective film layer, and the position of the notch corresponds to the position of an entity key on a mobile terminal; the release paper and the screen protection film layer are fixed through a first adhesive layer, the base paper and the side protection film layer are fixed through a first adhesive layer, the viscosity of the first adhesive layer is smaller than that of the second adhesive layer, an installation jig is provided, then the base paper is torn off from the protection film assembly and discarded, then the protection film assembly with the base paper torn off and the mobile terminal are sequentially placed into the installation jig, then the protection film assembly with the base paper torn off or the mobile terminal is pressed to enable the protection film assembly with the base paper torn off to be completely attached to the mobile terminal, then the mobile terminal with the protection film assembly with the base paper torn off attached is taken out, then the release paper is torn off, the screen protection film layer is taken away through the first adhesive layer by the release paper, only the side protection film layer is finally left to complete the attachment of the side protection film and the mobile terminal, the effect of facilitating the attachment is achieved, and meanwhile, the key positions are avoided through notches, the condition that the assembly and the test are influenced due to the fact that the entity key of the mobile terminal is pressed in is avoided.
In addition to the above embodiments, other embodiments are also possible. All technical solutions formed by using equivalents or equivalent substitutions fall within the protection scope of the claims of the present application.
In summary, although the present application has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present application, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, so that the scope of the present application shall be determined by the appended claims.
Claims (10)
1. The protective film assembly is characterized by comprising release paper, a protective film and base paper which are sequentially stacked; the protective film comprises a screen protective film layer and a side protective film layer surrounding the periphery of the screen protective film layer, at least one notch is formed in the side protective film layer, and the position of the notch corresponds to the position of an entity key on the mobile terminal; the release paper is fixed with the screen protection film layers through the first adhesive layers, the base paper is fixed with the side protection film layers through the second adhesive layers, and the viscosity of the first adhesive layers is smaller than that of the second adhesive layers.
2. The protective film assembly of claim 1, wherein the release paper has a length not less than the length of the screen protective film layer and a width greater than the width of the protective film layer.
3. The protective film assembly of claim 1, wherein the length of the base paper is greater than the length of the release paper and the length of the protective film, and the width of the base paper is greater than the width of the release paper.
4. The protective film assembly as claimed in claim 1, wherein the release paper comprises polyethylene or polyethylene terephthalate.
5. The protective film assembly of claim 1, wherein the protective film comprises polyethylene, polyethylene terephthalate, or polyvinyl chloride.
6. The protective film assembly of claim 1, wherein the protective film has a thickness in a range of 0.03mm to 0.3 mm.
7. The protective film assembly of claim 1, wherein the material of the second adhesive layer comprises an optical adhesive.
8. The protective film assembly of claim 7, wherein said second bondline has a thickness in the range of 0.2mm to 0.25 mm.
9. The protective film assembly of claim 1, wherein the release paper is provided with at least one positioning hole, and the positioning hole is used for positioning the protective film assembly when the protective film assembly is mounted on a mobile terminal.
10. The protective film assembly as claimed in claim 9, wherein the number of the positioning holes is 3, and the 3 positioning holes are located on the release paper in the area not covered by the protective film.
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| CN202010059904.7A CN111154417B (en) | 2020-01-19 | 2020-01-19 | Protective film assembly |
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| CN202010059904.7A CN111154417B (en) | 2020-01-19 | 2020-01-19 | Protective film assembly |
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| CN111154417A CN111154417A (en) | 2020-05-15 |
| CN111154417B true CN111154417B (en) | 2021-09-03 |
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